TWM575326U - Artificial bone - Google Patents

Abstract

An artificial bone comprising a bionic bone, a support column and a three-dimensional porous support structure, wherein the support column and the three-dimensional porous support structure are connected to the bionic bone, and the three-dimensional porous support structure is sleeved on the support column; the advantages of the creation are: The artificial bone is used to replace the original bone, and the support column and the three-dimensional porous support structure are arranged at the same time, and the support column is deeply supported and fixed in the connection end of the original bone; the three-dimensional porous support structure is arranged at the periphery of the connection end to which the original bone is connected, Provides a location that facilitates the attachment and growth of bone cells and provides a more stable connection between the artificial bone and the original bone.

Description

Artificial bone

This creation is about a bionic science, especially an artificial bone.

With the development of science and technology, human life is getting longer and longer. However, as you get older, your body's function will decline, or your body will decline due to illness. A biomimetic organ is urgently needed to replace the original organ.

In order to solve the above-mentioned prior art problems, the present invention provides an artificial bone, which replaces the original bone with artificial bone, and simultaneously provides a support column and a three-dimensional porous support structure, which contributes to the connection between the artificial bone and the original bone and the subsequent growth of the bone cells. .

The present invention solves the above-mentioned prior art problems and provides an artificial bone including a bionic bone, a support column and a three-dimensional porous support structure; the support column and the three-dimensional porous support structure are both connected to the bionic bone, and the three-dimensional porous support structure is sleeved on The support column.

Further improvements to this creation are described below.

The shape of the free end of the support column varies depending on the actual situation required or the actual condition of the patient.

The support column is a two cylinder and a prism between the two cylinders.

The prism has a square cross section.

The cross-sectional area of the prism is smaller than the cross-sectional area of the cylinder.

The support column can extend into the connecting end of the connected bone, and the three-dimensional porous support structure is sleeved on the connecting end of the connected original bone.

The shape and size of the pores of the three-dimensional porous scaffold structure vary depending on the actual conditions required or the actual conditions of the patient.

The bionic bone is integrated with the support column and the three-dimensional porous support structure; or the support column and the three-dimensional porous support structure are respectively screwed to the bionic bone; or the support column and the three-dimensional porous support structure Separately sintered to the bionic bone.

Compared with the prior art, the present invention has the advantages of replacing the original bone with artificial bone, and simultaneously providing a support column and a three-dimensional porous support structure, and the support column is deeply supported and fixed in the connection end of the original bone. A three-dimensional porous scaffold structure is provided at a position around the connecting end of the original bone, which can provide a position for facilitating adhesion and growth of bone cells, and can make the joint of the artificial bone and the original bone more stable.

The present invention will be further described below with reference to the accompanying drawings and specific embodiments.

As shown in FIG. 1 to FIG. 3, an artificial bone includes a bionic bone 11, a support column 12 and a three-dimensional porous support structure 13; the support column 12 and the three-dimensional porous support structure 13 are both connected to the bionic bone 11, wherein the three-dimensional porous support structure 13 sets are arranged between the support column 12 and the bionic bone 11. The artificial bone of the present invention is used to replace the original bone 2, and the support column 12 and the three-dimensional porous support structure 13 are simultaneously provided, which contributes to the connection between the artificial bone of the present invention and the original bone 2 and the subsequent growth of the bone cells.

The support column 12 of the present invention is a two cylinder and a prism between the two cylinders, the prism has a square cross section, can be used as a fixed part when sanding, grinding or polishing the smooth surface of the bionic bone, and can be used as a support column 12 A rotational shift between the original bone 2. Of course, the free end 14 of the support post 12 can have other shapes as needed for certain situations of the human bone so that the support post 12 can be better attached to the human bone. Specifically, the cross-sectional area of the prism is smaller than the cross-sectional area of the cylinder. The support post 12 can extend into the connecting end 21 of the original bone 2, and the three-dimensional porous support structure 13 is sleeved on the connecting end 21 of the connected original bone 2.

The shape and size of the pores of the three-dimensional porous scaffold structure 13 of the present invention vary depending on the actual situation required or the actual conditions of the patient.

The original bionic bone 11 is manufactured in accordance with the three-dimensional data of the original bone 2 to be replaced, and the support column 12 is manufactured in accordance with the inclination of the bone of the original bone 2. The artificial bone of the present invention has various manufacturing methods: the first type, the bionic bone 11 and the support column 12, and the three-dimensional porous support structure 13 are integrated, and are directly printed by a three-dimensional metal printer using a cobalt-chromium alloy or a titanium alloy. . Secondly, the bionic bone 11 is integrated with the support column 12 and the three-dimensional porous support structure 13 by using a titanium alloy, which is directly printed by a three-dimensional metal printer and then coated with a cobalt-chromium alloy. Thirdly, the support column 12 and the three-dimensional porous support structure 13 are respectively screwed to the bionic bone 11, that is, a cobalt-chromium alloy is used, and the bionic bone 11 is directly printed by the three-dimensional metal printer, and then the titanium alloy is used, and the three-dimensional alloy is used. The metal printer directly prints the support column 12 and the three-dimensional porous support structure 13, and then the support column 12 and the three-dimensional porous support structure 13 are respectively screwed onto the bionic bone 11. Fourthly, the support column 12 and the three-dimensional porous support structure 13 are respectively sintered and connected to the bionic bone 11, that is, a cobalt-chromium alloy is used, and the bionic bone 11 is directly printed by the three-dimensional metal printer, and then the titanium alloy is used, and the three-dimensional alloy is used. The metal printer directly prints the support column 12 and the three-dimensional porous support structure 13, and then the support column 12 and the three-dimensional porous support structure 13 are respectively sintered on the bionic bone 11.

In order to facilitate the installation of the bionic bone into the human body, the bone cells of the human body grow along the three-dimensional porous scaffold structure 13 and finally fully combine with the bionic bone 11, and the bionic bone 11, the three-dimensional porous scaffold structure 13 and the support column 12 can be combined in various combinations. achieve. As shown in FIG. 4 and FIG. 8 , the bionic bone 11 is provided with a cavity, and the three-dimensional porous support structure 13 is filled in the cavity, and the human bone cells are grown along the three-dimensional porous support structure 13 and filled to the bionic bone. In the cavity of 11, a good bond is achieved. Another embodiment, such as shown in FIG. 5, extends the three-dimensional porous stent structure 13 along the bottom surface of the bionic bone 11 and has a contour that is similar to the bone of the human body. The third and fourth embodiments, as shown in Fig. 6, are provided with a cavity in the bionic bone 11, and the three-dimensional porous support structure 13 is partially filled in the cavity and partially extended outside the bionic bone 11. In the fourth embodiment, the portion of the three-dimensional porous support structure 13 extending beyond the bionic bone 11 is similar to the contour of the human skeleton.

Regarding the specific structure of the three-dimensional porous scaffold structure 13, it may be an irregular porous scaffold, as shown in Fig. 9, or a regular porous scaffold, as shown in Fig. 10.

The above content is a further detailed description of the present invention in combination with the specific preferred embodiments, and it is not considered that the specific implementation of the present invention is limited to these descriptions. For those skilled in the art to which the present invention pertains, a number of simple deductions or substitutions may be made without departing from the inventive concept, and should be considered as the scope of protection of the present invention.

11‧‧‧Bionic bone

12‧‧‧Support column

13‧‧‧Three-dimensional porous scaffold structure

14‧‧‧Free end of the support column

2‧‧‧ Original bone

21‧‧‧ Original bone connection

Figure 1 is a schematic view showing the structure of the artificial bone.

2 is a schematic view of the implementation of the artificial bone.

Fig. 3 is a schematic view showing another implementation of the artificial bone.

Fig. 4 is a schematic view showing the structure of the first embodiment of the artificial bone of the present invention.

Fig. 5 is a schematic structural view of a second embodiment of the artificial bone of the present invention.

Fig. 6 is a schematic view showing the structure of a third embodiment of the artificial bone of the present invention.

Fig. 7 is a schematic structural view of a fourth embodiment of the artificial bone of the present invention.

Figure 8 is a three-dimensional view of the first embodiment of the artificial bone of the present invention.

Fig. 9 is a schematic view showing the structure of a three-dimensional porous stent structure of artificial bone in an embodiment.

Fig. 10 is a schematic view showing the structure of a three-dimensional porous stent structure of artificial bone in another embodiment.

Claims (8)

An artificial bone comprising a bionic bone, a support column and a three-dimensional porous support structure, wherein the support column and the three-dimensional porous support structure are both connected to the bionic bone, and the three-dimensional porous support structure is sleeved on the support column and the bionic bone between. The artificial bone according to claim 1, wherein the shape of the free end of the support column varies according to the actual condition of the patient's bone. The artificial bone of claim 2, wherein the support column is a two cylinder and a prism between the two cylinders. The artificial bone of claim 3, wherein the prism has a square cross section. The artificial bone of claim 4, wherein the prism has a cross-sectional area smaller than a cross-sectional area of the cylinder. The artificial bone according to claim 1, wherein the support column is capable of extending into a joint end to which the original bone is connected, and the three-dimensional porous support structure is sleeved on the joint end of the connected original bone. The artificial bone according to claim 1, wherein the shape and size of the pores of the three-dimensional porous stent structure vary according to the actual condition of the patient's bone. The artificial bone according to claim 1, wherein the bionic bone and the support column and the three-dimensional porous support structure are combined with the bionic bone in a manner of being selected from an integral structure, respectively being screwed or separately sintered. Any one or combination.